baber/WOPTO huggingface dataset:
Patent CA-2182833-C (CA)
Title: Screening apparatus for wood pulp
Inventor: LANGNER HERBERT GUNTHER JOACHI
IPC: D21D5/06
Filed: 1996-08-07
Granted: 2004-04-27
Abstract: A rotary screening device is disclosed which may be advantageously used to increase the solid content of influent. The apparatus includes a rotating cylinder having an inlet end, an outlet end and, depending on the material to be screened, a cylindrical wall formed at least partly from a screening surface, such as a woven wire mesh screen. The cylinder is journalled for rotation about its central axis, which may be either in a horizontal position or inclined up to 40 degrees from horizontal towards either the inlet or outlet end. Each end of the screening cylinder has its lowermost portion covered to restrict outward movement of the influent from the cylinder and maintain a minimum layer of retained solids therein.
Patent CA-2190493-C (CA)
Title: Vanne a bille
Inventor: O'CONNELL BARRY G
IPC: F16K27/06
Filed: 1995-05-17
Granted: 1999-10-05
Abstract: Un dispositif de vanne à bille pour vannes à bille de grand diamètre comporte un corps de vanne principal obtenu à partir d'un tuyau en plastique extrudé et présentant un passage central traversant (18) au centre duquel est monté une bille (74) de vanne. Une tige de commande (30) s'étend depuis la bille jusqu'à l'extérieur du corps principal. Des première et seconde bagues de retenue de logement séparées (88, 89) sont placées de chaque côté de la bille. Chaque bague de retenue présente une surface externe supportant un joint d'étanchéité (120) venant en contact avec la paroi du passage traversant, et définit une surface de logement sphérique (104) positionnée et dimensionnée de sorte que la bille de vanne s'y engage de manière étanche. Des éléments à tirant ajustables (121) relient les bagues de retenue de sorte que la bille de vanne vienne en contact avec les surfaces de logement avec une force d'étanchéité prédéterminée.
Patent CA-2191721-C (CA)
Title: Wideband wireless basestation making use of time division multiple-access bus to effect switchable connections to modulator/demodulator resources
Inventor: CARNEY RONALD R
IPC: H04B1/40
Filed: 1995-01-27
Granted: 2003-05-20
Abstract: A wireless communication system basestation making use of a wideband, multichannel digital transceiver having incorporated therein a time division multiple-access (TDM) bus for providing digital samples of a plurality of wireless communication channels, wherein the TDM bus is used as a crossbar switch to permit dynamic allocation of modulator and demodulator signal processing resources. The invention allows various air interface standards, even those having different channel bandwidths, to be serviced by the same basestation, with automatic redistribution of signal processing resources, eliminating the need to reconfigure the basestation when the loading of different types of wireless signaling traffic changes.
Patent CA-2192497-C (CA)
Inventor: FOK WILSON
IPC: H04B1/52
Filed: 1996-12-10
Granted: 1999-09-14
Abstract: Improved RF switching techniques operate in conjunction with an existing cellular telephone having an RF amplifier, an antenna, receiver circuitry, a duplexer, and a battery. The duplexer has a first port adapted for connection to the receiver circuitry, a second port adapted for connection to the RF amplifier, and a third port adapted for connection to the antenna. The improved RF switching techniques are characterized by a first switch, a second switch, and a battery of less than 6.0 volts. The first switch, coupled to the RF amplifier, connects the RF amplifier to any one of the antenna and the second port of the duplexer. A second switch, coupled to the antenna, connects the antenna to any one of the RF amplifier and the third port of the duplexer. During transmit-only operation, the first switch connects the RF amplifier to the switch during receive-only operation, and also during transmit-receive operation, the first switch connects the RF amplifier to the second port of the duplexer and the second switch connects the antenna to the third port of the duplexer.
Patent CA-2193449-C (CA)
Title: Punch system for tibial prosthesis
Inventor: WILDGOOSE SARAH ANNE
IPC: A61F2/46
Filed: 1996-12-19
Granted: 2005-11-15
Abstract: A punch system is provided for preparing a keel cavity in a tibial bone for implantation of a prosthesis. The system provides a modular punch system providing a logical step-to-step approach to cutting, punching, and/or forming the tibial bone. The system of a preferred embodiment includes a quick release punch guide for attaching to a tibial tray trial component of a surgical instrument system for implanting artificial knees., and a universal quick release handle for attaching or detaching a punch from a handle or slap hammer.
Patent CA-2198317-C (CA)
Inventor: BELLAVANCE FRANCIS
IPC: C12N9/94
Filed: 1997-02-24
Granted: 2003-01-07
Abstract: The present invention relates to an advantageous and novel method of preparing pancreatin which contains low amounts of residual organic solvent, and more particularly to a method which is more environmentally friendly than conventional methods of pancreatin preparation. More specifically, the present invention relates to a method which utilizes quantities of organic solvents which are about 10 times lower than that of conventional methods. A preferred method of pancreatin preparation, whereby a pancreatic paste is autolysed, decontaminated, subjected to an ultrafiltration, dried and then defatted is herein disclosed. The present invention further relates to a pancreatin preparation which contains low amounts of residual solvent. This amount is about 15 to 30 times lower than pancreatin preparation obtained with these conventional methods.
Patent CA-2198977-C (CA)
Title: Image forming apparatus with controlled access
Inventor: HEYDINGER SCOTT MICHAEL
IPC: B41J2/505
Filed: 1997-03-03
Granted: 2003-08-19
Abstract: The invention is directed to an image forming apparatus including a print engine operable in at least two modes, and an access control system connected to and controlling the print engine.  The access control system includes an access control key for allowing selective and discriminate switching of the print engine from one of the at least two modes to an other of the at least two modes, such as from an economy mode to a high quality mode, or vice versa.
Patent CA-2201689-C (CA)
Title: Projection-type liquid crystal display device
Inventor: ISHITANI HIROAKI
IPC: G02F1/13
Filed: 1997-04-03
Granted: 2000-11-28
Abstract: A projection-type liquid crystal display device having a light source for emitting a luminous flux; a liquid crystal light valve for modulating the luminous flux emitted by the light source means; a liquid crystal drive circuit for applying the common voltage to the common electrode and the video signal to the source electrode; a projection lens for projecting the luminous flux modulated by the liquid crystal light valve onto a screen; a liquid crystal temperature detector for detecting temperature in the vicinity of the liquid crystal light valve; and a controller. The controller controls the common voltage and/or the source voltage on the basis of values detected by the liquid crystal temperature detector in such a way that fluctuation in the light transmittance of the liquid crystal light valve means is reduced.
Patent CA-2202994-C (CA)
Title: Carbonization of halocarbons
Inventor: WEBSTER JAMES LANG
IPC: B01D53/70
Filed: 1995-10-16
Granted: 2008-04-29
Abstract: Halocarbon is carbonized at a temperature of at least 600 .degree.C in the presence of excess hydrogen and the absence of water to obtain carbon and anhydrous haloacid as the primary reaction products.
Patent CA-2204566-C (CA)
Title: Apparatus and method for sterilization and embolization
Inventor: LAMBRECHT GREGORY H
IPC: A61N7/02
Filed: 1997-05-06
Granted: 2001-07-10
Abstract: An apparatus (20) for transcervical sterilization or transcatheter embolization with a controlled bipolar RF catheter (21) for creating thermal lesions (22) in the fallopian tubes (23) or thrombosing vessels has a catheter (21) elongate along an axis thereof with a patient end (24). The catheter (21) is circular and sized for transcervical insertion into the fallopian tube or transcatheter vessel insertion, respectively. A connector (25) on an end of the catheter (21) opposite the patient end (24) has the terminations (26) for RF and monitoring and is shaped for the surgeon to manipulate during placement and withdrawal. Two or more bipolar electrodes (29, 30 and 31)on the patient end (24) are placed so each electrode is spaced from another with each circumscribing the catheter (21). A mucosa or thrombus sensor responsive to applied RF energy passing between the two or more bipolar electrodes (29, 30 and 31)determines the condition of the transmural formation of a lesion or the thrombus between each of the electrodes. The sensor is a temperature sensor positioned in the space (34) between the electrodes measures the change in mucosal layer temperature or the thrombus during the application of RF energy. An RF generator (27) electrically coupled to the electrodes and the sensor is alternately a phase detector (35) in circuit with the coupling determines reactance of tissue as an indicator of lag or lead of the voltage wave form or current wave form delivered or is an impedance responsive circuit (39) positioned in the RF generator (27) to determine voltage and current delivered so a calculator finds impedance delivered for finding initial electrode contact with the tissue and for measuring the change in mucosal layer. A blunt tip at the patient end (24) facilitates introduction into the tube or vessel to avoid perforation. The temperature sensor connects to an RF generator (27) with control circuitry regulating delivery to a temperature range. A proportional controller regulates the RF energy delivery to control temperature rise time and to maintain the temperature near the mid point of the temperature range. A method for sterilization has the steps of inserting a catheter (21), delivering RF and monitoring the effect on the mucosa or thrombus, circumscribing the catheter (21) with two or more bipolar electrodes, each of the electrodes spaced from one another and passing RF energy therebetween.
Patent CA-2206750-C (CA)
Inventor: HENSLER THOMAS ANTHONY
IPC: D21F7/08
Filed: 1993-08-16
Granted: 2000-01-11
Abstract: A secondary belt for papermaking. The belt has a frame-work of protuberances (20) arranged in a semicontinuous pattern to provide a semicontinuous pattern of deflection conduits (40). The semicontinuous pattern is distinguished from the discrete and continuous patterns of the prior art. The protuberances may be generally parallel, or may provide individual cells within the deflection conduits between the protuberances. Also disclosed is the paper made on such a secondary belt.
Patent CA-2207843-C (CA)
Title: Method and apparatus for assembling custom glass assemblies
Inventor: RUECKHEIM ERIC W
IPC: E06B3/66
Filed: 1995-06-02
Granted: 2000-08-29
Abstract: The present invention provides a method and apparatus for assembling a small number of custom sealed double glazing units in which spacers can have different widths and panes of different assemblies can be differently sized. In accordance with one method of the invention, a spacer (31) having sealant (34) on opposing surfaces thereof is adhered to a first glass pane (21) and a resilient member (40) is positioned alongside a portion of the spacer. A seond glass pane (26) is positioned over the spacer so that it is partially adhered to the spacer to define an interpane space (36) around which the spacer is adhered, but with the resilient member preventing contact with the whole of the spacer, so maintaining a gap between a portion of the spacer and the second glass pane. The resulting assembly is moved into a gas exchange chamber (60), and air is removed from the chamber and accordingly also the interpane space. A gas having a coefficient of thermal conductivity lower than that of air is introduced into the chamber and accordingly also the interpane space, and the glass panes are pressed together while in the gas exchange chamber to compress the resilient member and adhere the second glass pane to all of the spacer to seal the interpane space.
Patent CA-2212890-C (CA)
Inventor: LABSCHIES HARTMUT
IPC: B65G65/48
Filed: 1996-02-02
Granted: 2000-09-05
Abstract: The invention concerns a device for producing a stream of bulk material, which device is designed so that bulk material is introduced through a pipe axially into a rotating pot (1). Owing to acceleration and centrifugal force the bulk material moves towards the edge region of the pot (1) and fills the entire pot up to the axial inlet. In the edge region of the pot (1) a blade (12) disposed on a non-rotating part of the pot (1) dips into the rotating material cake in the opposite direction to the rotation thereof, so leading the stream of bulk material out. The device can be used wherever bulk materials have to be measured and metered. The device is flanged directly onto the outlets of existing silos.
Patent CA-2213350-C (CA)
Title: Apparatus for sealing a vacuum chamber of a seed metering apparatus
Inventor: OLSON THOMAS A
IPC: A01C7/04
Filed: 1997-08-19
Granted: 2002-07-09
Abstract: A sealing arrangement for a vacuum seed metering mechanism including a housing assembly divided into a seed receiving chamber and a vacuum chamber by a relatively this circular seed disc having parallel and flat sides.  The seed disc is provided with a circular row of throughopenings adjacent the periphery of the seed disc.  The openings serve to pick up seeds in the seed receiving chamber of the seed metering mechanism and carry the seeds around under the influence of pressure differentials to the seed discharge area of the seed metering mechanism. A sector of the seed disc is partitioned off both from the vacuum and chamber and the seed receiving chamber to allow the seeds to be released from the disc and gravitationally deposited into the furrow passing beneath the seed metering mechanism.  The housing assembly of the seed metering mechanism has integrally formed thereon a pair of radially spaced annular flat sealing faces.  The annular faces are joined to each other in a common plane and form the vacuum chamber extending in the direction of rotation of the seed disc.  The sealing faces of the housing assembly are disposed on opposed sides of the row of apertures in the disc.  The sealing faces on the housing assembly are arranged in confronting relation to the flat side of the seed disc.  In combination with the vacuum acting thereon, spring structure resiliently urges the seed disc toward and into continuous sliding contact with the sealing faces on the housing assembly thereby maintaining a sealing relationship between the disc and the housing assembly throughout operation of the seed metering mechanism thus establishing a pressure differential at the holes or openings of the seed disc for holding the seeds to the disc.
Patent CA-2213422-C (CA)
Title: Improved closure and hinge system for waste-containing cases and implement for inspection opening
Inventor: GONZALEZ MEJIAS DAVID
IPC: A61B19/02
Filed: 1995-12-28
Granted: 2007-10-16
Abstract: The closure and hinge system is applicable between the lid (2) and the relevant waste-containing case (1), the lid (2) being provided with a pair of wings (2) having a slotted window (4) to be mounted on a transverse bolt (5) being the articulation and hinge element for the lid (2) proper, which has a perimetric skirt (12) having flanges (121) with heels (15) which upon the definitive closure are housed and locked in windows (10) provided in a perimetric wing (9) of the case (1). The bolt (5) may be positioned in a deep area (17) of the window (4), allowing the lid (2) to be opened and closed (2) as many times as desired, or in an outermost position being the area (18), in which the lid (2) is definitively closed upon the heels (15) being locked in the windows (10). Although the system is designed to achieve an inviolable closure of the case, an accessory implement allows it to be opened, to eventually inspect its contents.
Patent CA-2214508-C (CA)
Title: Engine cylinder head assembly having planar and cast components
Inventor: EMMER MARK W
IPC: F02B75/02
Filed: 1996-12-09
Granted: 2002-09-24
Abstract: The cylinder head assembly (10) includes a cast member (12), and a substantiallyplanar member (14) that is affixed to an upper end of the case member (12). The substantially planar member (14) includes apertures (74, 76) to anchor the intake and exhaust rocker studs (79), apertures that receive the intake and exhaust valve, and apertures that receive the push rod guides. The substantially planar member also has spring locators for the intake and exhaust valve (32) return springs. The cast member (12) is affixed to the engine cylinder (17), and includes cast intake and exhaust manifolds (26), bosses for receiving the intake and exhaust valves (32), a cast pocket for receiving the intake and exhaust push rods (72), and air cooling fins (68). A head cover (16) is disposed on an opposite side of the planar member (14). The invention eliminates the need for two cast components.
Patent CA-2217178-C (CA)
Inventor: GARCON NATHALIE MARIE-JOSEPHE CLAUDE
IPC: A61K39/02
Filed: 1996-04-01
Granted: 2009-09-29
Abstract: The invention relates to a vaccine composition comprising an antigen, an immunologically active saponin fraction and a sterol.
Patent CA-2222575-C (CA)
Inventor: PUGEL MICHAEL ANTHONY
IPC: H03L7/107
Filed: 1996-05-28
Granted: 2000-02-22
Abstract: Un syntoniseur (9) destiné à un récepteur d'émissions de télévision numériques provenant de satellites comprend un étage convertisseur unique qui produit un signal FI à une fréquence suffisamment basse pour permettre l'utilisation d'un filtre à ondes de surface (913) afin d'exécuter la mise en forme de symboles ainsi que le filtrage FI normal. L'oscillateur interne (911) est commandé par un circuit intégré de commande de l'accord d'une boucle à verrouillage de phase, utilisé généralement pour commander l'oscillateur interne (911) d'un syntoniseur, dans un récepteur classique de télévision hertzienne ou câblée. Dans un mode de réalisation cité en exemple, pour accorder des signaux haute fréquence fournis par un convertisseur de blocs (3) dans la gamme de fréquences allant de 950 à 1 450 MHz, la FI a une fréquence centrale de 140 MHz.
Patent CA-2230170-C (CA)
Title: Carburetor for two-cycle engine
Inventor: UEDA MINORU
IPC: F01M9/10
Filed: 1998-02-23
Granted: 2006-06-20
Abstract: [Problems to be Solved] To provide a carburetor for a two-cycle engine, and prevent water from entering into the engine, using a lubricating system of the engine. [Means to Solve the Problems]    Oil sealing members 98 are attached to bearings of a throttle shaft 80 of a carburetor 36. Oil holes 95 are formed at positions near a barrel passage 82 and inside the oil sealing members 98, thereby forcibly supplying lubricating oil to the bearings. Therefore, the bearing are continuously lubricate, so that water is prevented from entering into the carburetor. The forcibly supplied lubricating oil leaks from the bearings to the barrel passage 82, and is supplied to the interior of the engine together with air-fuel mixture produced by the carburetor 36. The two oil holes 95 communicate with each other via a dovetail groove 96, so that the lubricating oil from a lubricating oil plug 97 is simultaneously supplied to the bearings at the opposite ends of the throttle shaft.
Patent CA-2234167-C (CA)
Title: Process for making propylene homo or copolymers
Inventor: PENTTI ISMO
IPC: C08F110/06
Filed: 1996-10-10
Granted: 2004-09-14
Abstract: A process for homo or copolymerizing propylene, wherein propylene is polymerized in the presence of a catalyst at an elevated temperature in a reaction medium in which a major part of the reaction medium is propylene and the polymerization is carried in at least one CSTR or loop reactor, where the polymerization is carried out at a temperature and a pressure which are above the corresponding critical temperature and the pressure of the reaction medium and where the residence time is at least 15 minutes. The process can also comprise a subcritical loop polymerization before the supercritical stage polymerization or a gas phase polymerization after the supercritical stage polymerization.
Patent CA-2234216-C (CA)
Inventor: WASMUHT KLAUS-KARL
IPC: C12C7/20
Filed: 1998-04-06
Granted: 2007-06-12
Abstract: The invention refers to a method and apparatus for heating and atmospherically boiling wort when brewing beer. To optimize the heating and/or boiling process and to obtain an optimum wort quality, the heating and/or boiling process is carried out in accordance with a target value curve, which is stored in a control means and which can be individually generated by the brewer.
Patent CA-2248011-C (CA)
Title: Procede et appareil de commande de bruleur de four a gaz
Inventor: DAY JOSEPH M
IPC: F23N5/20
Filed: 1997-02-28
Granted: 2002-07-02
Abstract: Cette invention concerne un procédé et un appareil permettant de rallumer un four à gaz après interruption du fonctionnement de ce dernier, que ce soit à cause d'une défaillance temporaire ou d'une diminution du niveau d'énergie fourni par une source d'énergie électrique. Ce procédé consiste à interrompre instantanément l'alimentation en gaz sous pression du four lorsque l'on détecte une diminution du niveau d'énergie électrique. On abaisse ensuite doucement la pression du gaz dans le circuit d'alimentation avant de contrôler cette dernière. On rétablit enfin l'alimentation en combustible du four, ceci uniquement dans le cas où l'alimentation électrique revient à un niveau normal en un court laps de temps, et avant que la pression de gaz ne diminue en dessous d'un seuil prédéterminé.
Patent CA-2250482-C (CA)
Inventor: MURRAY MICHAEL P
IPC: G06F1/16
Filed: 1998-10-14
Granted: 2002-03-26
Abstract: An electronic device such as a radiotelephone (100) includes a bottom housing (108) defining a first hinge aperture (2207) and a slot (2208) adjacent the first hinge aperture. A top housing (102) defines a second hinge aperture (2223) having an inner rotation surface (2226). A shaft (2210) extends from the first housing at the first hinge aperture. The shaft is sized for insertion in the second hinge aperture and terminates in a bearing surface (2216), the inner rotation surface pivoting on the bearing surface as the second housing moves in relation to the first housing. The shaft and the bearing surface both define a shaft slot (2218) aligned with the slot in the first housing for routing a flexible circuit element (216) between the first housing and the second housing.
Patent CA-2257504-C (CA)
Inventor: HALL CHRISTOPHER S
IPC: G01N29/30
Filed: 1997-05-30
Granted: 2003-02-25
Abstract: L'invention porte sur un procédé d'étalonnage d'équipements de diagnostic et d'agents de contraste par ultrasons utilisant des microsphères de polystyrène comme outils d'étalonnage in vitro. Ledit procédé consiste à placer dans un récipient présentant une ouverture acoustique une suspension de microsphères de polystyrène dans un milieu liquide. La suspension de microsphères est continuellement agitée pendant la mesure de la rétrodiffusion sur les microsphères, tandis que l'équipement de diagnostic et l'agent de contraste par ultrasons sont étalonnés ou ajustés sur un réglage de la rétrodiffusion.